check if a protein abundance is expected to be low

Question

[Abhishek]

Hi all,

I have results from LC MS/MS (Orbitrap Fusion Lumos mass spectrometer) which I quantified using MaxQuant. We noted that a particular set of proteins are not present in our data.

Is there a reference protein database with average abundance of each protein, which I can use to check if these proteins of interest are in general of low abundance ? https://www.proteinatlas.org/ provides a field 'RNA Tissue specific nTPM' - can this be used as an estimate for the expected abundance of a protein ?